I hijacked the thread that was already started about the 273 heads to get the info I was looking for without starting another thread about the same stuff. I am the one that asked about running the 1.88 and 1.6 valves in the 273 heads on a 273. I decided to stay with the 1.78. But you touched on my cam spec so I asked your opinion on it. The Rhoads lifters will reduce my dur at idle by 15 deg at .050. They have worked for me in the past to tame cams at idle and 205 dur at .050 at idle should run fine. lol. I hope